<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <!-- 搜索与添加区域 -->
      <el-row :gutter="30">
        <el-col :span="8">
          <el-input placeholder="请输入内容" class="input-with-select" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>

        <el-col :span="3">
          <el-button type="primary" @click="addDiglogVisable = true">添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userList" border>
        <el-table-column type="index"></el-table-column>
        <el-table-column prop="username" label="用户"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="roleName" label="角色"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.state" @change="userStateChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="editDiglogInit(scope.row)"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="deleteUserById(scope.row.id)"></el-button>
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 10, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>

      <!-- 添加用户对话框 -->
      <el-dialog title="添加用户" :visible.sync="addDiglogVisable" width="50%" @close="diglogClose('add')">
        <!-- 内容主体区域 -->
        <el-form :model="addForm" :rules="formRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机号" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDiglogVisable = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 添加用户对话框 -->
      <el-dialog title="修改用户" :visible.sync="editDiglogVisable" width="50%" @close="diglogClose('edit')">
        <!-- 内容主体区域 -->
        <el-form :model="editForm" :rules="formRules" ref="editFormRef" label-width="70px">
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled=""></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机号" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDiglogVisable = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 分配角色 -->
      <el-dialog title="分配角色" :visible.sync="setRoleDiglogVisable" width="50%" @close="setRoleDiglogClose">
        <!-- 内容主体区域 -->
        <div>
          <p>当前的用户: {{ userInfo.username }}</p>
          <p>当前的角色: {{ userInfo.roleName }}</p>
          <p>
            分配的角色:
            <el-select v-model="selectedRoleId" placeholder="请选择">
              <el-option v-for="item in roles" :key="item.id" :label="item.roleName" :value="item.id"> </el-option>
            </el-select>
          </p>
        </div>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRoleDiglogVisable = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }

    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      userList: [],
      total: 0,
      addDiglogVisable: false,
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },

      editForm: {},
      editDiglogVisable: false,
      formRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 3, max: 16, message: '长度在 3 到 16 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },

      setRoleDiglogVisable: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      roles: [],
      selectedRoleId: ''
    }
  },

  created() {
    this.getUserList()
  },

  methods: {
    async getUserList() {
      const { data: resp } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (resp.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userList = resp.data.users
      this.total = resp.data.total
    },
    // 监听pageSize改变事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch开关状态的改变
    async userStateChange(userInfo) {
      const { data: resp } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.state}`)
      if (resp.meta.status !== 200) {
        this.userInfo.state = !this.userInfo.state
        this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },

    //监听对话框关闭事件
    diglogClose(operation) {
      if (operation === 'add') {
        this.$refs.addFormRef.resetFields()
      } else if (operation === 'edit') {
        this.$refs.editFormRef.resetFields()
      }
    },
    // 添加用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        const { data: resp } = await this.$http.post('users', this.addForm)
        if (resp.meta.status !== 200 && resp.meta.status !== 201) {
          return this.$message.error(resp.meta.msg)
        }
        this.$refs.addFormRef.resetFields()
        this.addDiglogVisable = false
        this.$message.success('添加用户成功')
        this.getUserList()
      })
    },

    editDiglogInit(userInfo) {
      this.editForm = JSON.parse(JSON.stringify(userInfo))
      this.editDiglogVisable = true
    },

    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        const { data: resp } = await this.$http.put(`users/${this.editForm.id}`, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })

        if (resp.meta.status !== 200) {
          return this.$message.error(resp.meta.msg)
        }
        this.$refs.editFormRef.resetFields()
        this.editDiglogVisable = false
        this.$message.success('修改用户成功')
        this.getUserList()
      })
    },

    async deleteUserById(id) {
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: resp } = await this.$http.delete(`users/${id}`)
      if (resp.meta.status !== 200) {
        return this.$message.error(resp.meta.msg)
      }
      this.$message.success('删除用户成功')
      this.getUserList()
    },

    setRoleDiglogClose() {
      this.userInfo = {}
      this.selectedRoleId = ''
    },
    // 分配角色
    async setRole(userInfo) {
      this.userInfo = userInfo
      const { data: resp } = await this.$http.get(`roles`)
      if (resp.meta.status !== 200) {
        return this.$message.error(resp.meta.msg)
      }
      this.roles = resp.data
      this.setRoleDiglogVisable = true
    },

    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: resp } = await this.$http.put(`users/${this.userInfo.id}/role`, {
        rid: `${this.selectedRoleId}`
      })
      if (resp.meta.status !== 200) {
        return this.$message.error(resp.meta.msg)
      }
      this.setRoleDiglogVisable = false
      this.getUserList()
      return this.$message.success('分配角色成功')
    }
  }
}
</script>
<style scoped>
</style>